Improvement in valves for gas-regulators



.1. C. SARSFIELD.

Valves for Gas-Regulators.

Patented Feb. 18,1873.

`@191mwam:

` gauw :Anzi

AM. pHoro-umasMPfi/c ca ALJ/.(asaomvels Moussa) UNITED STATEs PATENTOFFICE.

JOHN o. sAEsEIELD, oE NEw YoEK, N. Y.

IMPROVEMENTKIN VALVES FOR GAS-REGULATORS.

Specification forming part of Letters Patent No. 136,007, dated February18 1873.

To all whom it may concern:

Be it known that I, J oEN C. SARSEIELD, of the city, county, and Stateof New York, have invented a new and useful Improvement in Self'ActingValve, of which the following is a specification:

Figure l is a detail longitudinal section of my improved self-actingvalve. Fig. 2 is a detail side view of a part of the same.

Similar letters of reference indicate corresponding parts. u

My invention has for its object to furnish an improved self-acting valvefor regulating the pressure and flow of. gas as it passes from the meterto the burners, to cause each burner to give the proper amount of light,however many or few burners may be burning, and which shall be simple inconstruction, conveniently applied, and edective in operation; and itconsists in the combination of the tube, anged at oneend and having twosets of notches of unequal depth formed in its other end, the valve, thespring, and the cross-bar, with each other and with the tubular chamber,to adapt the device to be attached to a gas-pipe, between the meter andburners, as

. hereinafter more fullydescribed.

A B is a tubular chamber, designed to be connected with the gas-pipeleading from the meter to the burners. The tubular chamber A consists oftwo parts, the body or main partAand the cap B, which parts are screwedtogether, as shown in Fig. l. G is a tube,

' open at one end, having an inwardly-projecting iiange formed aroundits other end, leaving a hole through its center for the passage of thegas. The flanged end of the tube O has a screw-thread cut upon its outersurface to screw into a screw-thread out in the inner surface of themouth of the part A of the tubular chamber Al B. The hole through'theiianged end of the tube C is closed with a valve, D, which rests uponthe outer or forward side of the said flange, and the forward end of itsstem E passes through a guide-hole vin an arm, b, formed in the cap partB of the tubular chamber A B. The other end of the valve-stem E passesinto the tube G, and has one end of a coiled wire-sprin g, F, attachedto it. The other end of the spring F is attached to a cross-bar, G,which rests in notches c1 formed in the edge ofthe open end of the tubeC. In the edge of the open end of the tube C, midway between the notchesc1, are formed two other notches, c2, which are made deeper and Widerthan the notches c1, so that, by raising the cross-bar G` out of thenotches c1, turning it one-quarter around and dropping it into thenotches c2, the spring F will be slackened, so that it may be adjustedto regulate its tension as may be required: By this construction, aslone or more burners are lighted, the tendency is to form a vacuum infront of the valve D, which allows the pressure of the gas to raise thevalve D less or more, according to the number of burners lighted, so asto furnish exactly the amount of gas required for said burners, so thatthere will always be a uni-` form pressureof gas upon the burners,however many or few may be lighted.

Having thus described myinvention,I claim as new and desire to secure byLetters Patentl. The tube C, notched at c1 c2, and the crossbar Grcombined with the spring of valve-stem E and valve D, as described, sothat the crossbar may be changed in its position and thus change thetension of spring.

2. The tube C, provided with a valve held to the cross-bar by a springcombined with the parts A B, constructed and applied thereto as and forthe purpose set forth.

JOHN C. SARSFIELD.

Witnesses:

JAMES T. GRAHAM, T. B. MosHER.

